Transmission fluid change.
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Fleet Mechanic
Joined: Dec 2012
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Transmission fluid change.
If I am understanding this right, I think I have a 6R100 (how do I tell if its a 6R100 or 6R140?) trans in my 6.2L gasser 2017 F250, which may have the heated fluid requirement before it sends more than 10% fluid to the cooler ,( meaning I need to do the cold flush from video in this thread.) right??
whats confusing me I guess is,
There is another YT video of a guy doing 6R140( 6.7L truck) from the cooler output that looks easier than this cold fluid flush here, but sounds like this thread states he should have been only getting 10% flow with cold fluid. Right?
with the 10% cooler output cold fluid flush, wouldn't I need like 40 quarts through it before it came out bright red clear fresh fluid at the 10% flow?
or am I way off? and no heated fluid needed on my trans, so no need to do this threads cold flush and won't be wasting tons of fluid out the cooler output?
any guidance would be great thanks
whats confusing me I guess is,
There is another YT video of a guy doing 6R140( 6.7L truck) from the cooler output that looks easier than this cold fluid flush here, but sounds like this thread states he should have been only getting 10% flow with cold fluid. Right?
with the 10% cooler output cold fluid flush, wouldn't I need like 40 quarts through it before it came out bright red clear fresh fluid at the 10% flow?
or am I way off? and no heated fluid needed on my trans, so no need to do this threads cold flush and won't be wasting tons of fluid out the cooler output?
any guidance would be great thanks
Fleet Mechanic
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https://www.fordservicecontent.com/F...&buildtype=web
I just dropped my pan and changed the fluid and filter at 50k.
I just dropped my pan and changed the fluid and filter at 50k.
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Fleet Mechanic
Joined: Dec 2012
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thanks that's what I thought but couldn't find anything to tell me it was... now I have to figure out if cooler output fluid change or the cold flush like the vid I found in the previous gen forum and they moved my post back here.
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Fleet Mechanic
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do you know if this trans has the thermostatic control to the cooler? Can you look it up in your service manual?????
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Fleet Mechanic
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been a ford guy since mid 80's and my folks had fords... biggest thing I learned was early maint. Is the trick.. I would never wait 100000+ to change trans fluid. I have already done plugs and cleaned crust out of coils( misfire codes) and coolant and thermostat. Brake fluid is original and dark so that's next. And early trans flush is way cheaper than a trans replacement.
Lead Driver
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Yeah, especially if you will be doing early change intervals, gets a good refresh of fluid, and you will never get all the old fluid out anyway.
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Fleet Mechanic
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